Spectrum Management for QoE-aware Dynamic Spectrum Access Networks

PhD Thesis Proposal Defence


Title: "Spectrum Management for QoE-aware Dynamic Spectrum Access Networks"

by

Miss Yanjiao CHEN


Abstract:

The growing demand for wireless communications poses great challenges for the 
current wire- less network infrastructure. The risk of spectrum crutch, where 
the user demand outstrips the available spectrum, motivates the research on 
dynamic spectrum access to improve the usage of the under-utilized spectrums. 
In this thesis proposal, we study the spectrum management for dynamic spectrum 
access networks from three aspects: spectrum auction, spectrum allocation 
between li- censed and unlicensed use, and hybrid access in femtocell networks. 
We identify the challenges under each scenario, and propose solutions to 
address the problem.

For the spectrum auction, we have two proposals. First, we design a double 
auction mechanism for heterogeneous spectrums, dealing with the problem of 
heterogeneous interference graphs and heterogeneous buyers valuations. Second, 
we design an online double auction mechanism for dy- namic spectrum access, 
taking into consideration the location-determined interference relationship 
among buyers. For the spectrum allocation between licensed and unlicensed use, 
we build a three- stage game model to characterize the interaction among the 
spectrum regulator, the licensed and the unlicensed operators, and the end 
users. The target is a balance of allocation income for the spectrum regulator 
and social welfare for the end users. For the hybrid access in femtocell 
network- s, we also have two proposals. First, we establish a utility-aware 
refunding framework, in which the macrocell operator refunds the femtocell 
owners for sharing their femtocell resources. Second, we propose a reverse 
auction framework for the macrocell operator to purchase access permission from 
multiple femtocell owners with overlapping coverage. All of the above studies 
achieve a more efficient utilization of the spectrum resources in the dynamic 
spectrum access networks.


Date:			Friday, 13 June 2014

Time:                   2:00pm - 4:00pm

Venue:                  Room 3501
                        lifts 25/26

Committee Members:	Prof. Qian Zhang (Supervisor)
 			Dr. Lin Gu (Chairperson)
 			Dr. Qiong Luo
 			Prof. Bo Li


**** ALL are Welcome ****